Talampaya is an achondrite that fell in Argentina, in 1995.
Talampaya is a cumulate eucrite, and part of the HED (Howardite-Eucrite-Diogenite) meteorite group, believed to have formed on the surface of asteroid 4-Vesta.
According to the Meteoritical Bulletin (MB 83): Stories circulating among meteorite dealers tell of a meteorite that fell in Argentina, producing a sonic boom that scared a mountain climber. The climber eventually found the meteorite somewhere down range. The location of the fall may have been in San Juan or La Rioja province. One 1421 gram stone was recovered, and sold in the United States.